Medium sized pyrex or plastic bowl
Plate large enough to cover the top of the bowl

Decant 2 cups worth of couscous into the bowl. Level it out (give it a bit of a shake), and pour boiling water over it, just enough to cover it. Leave it to settle for a minute and it should increase in size. Add a knob of butter, some coriander & a large pinch of salt (like, 1 heaped teaspoon). Pour boiling water over it again, this time, just enough to cover it. Put a plate on top, and put in the microwave for a minute, minute and a half tops.

Take out of the microwave, remove the plate, fluff up with a fork, and you're all done :)